For those interested in pursuing this matter further: Below is the domain registration of teachingchina.net. It refers to antianfan (see 2nd line) as the registrant; they are part of the same group. You may send your complaints to their domain registrar if you want:

Domain Name: teachingchina.net
Registrar URL: http://1and1.com Abuse contact: abuse@1and1.com
Registrant Name: A Infante
Registrant Organization: An Tian Fan
Registrant Street: Office 1412, 8 Zhongshan Avenue
Registrant Street: Tian he
Registrant City: Guangzhou
Registrant State/Province:
Registrant Postal Code: 510000
Registrant Country: CN
Registrant Phone: +86.2037303381
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: contact@antianfan.com